It is quite strange linbox should be linked to blas and lapack.
Something didn't work properly when you installed it, or possibly

I'll need to get on my home box where I have a 7.3 install. The combo
givaro/fflas-ffpack/linbox is locked to particular version sets which
makes it hard to inspect when it is changing (and it is changing in 7.4
which the one I have on my dev box here at work).


On 14/10/16 09:48, wrote:

On Fri, 14 Oct 2016 07:48:55 +1300
"François Bissey" <> wrote:

Sorry, I forgot you are on sage 7.3, so you have an older
version of linbox without a .pc file.
So instead I’ll need
ldd -r /usr/lib64/
readelf -d /usr/lib64/

  Here is the output:

ldd -r /usr/lib64/ (0x00007ffcbd902000) => /usr/lib64/ (0x00007f2b65d26000) => /usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/ 
(0x00007f2b65926000) => /lib64/ (0x00007f2b6558e000) => /usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/ 
(0x00007f2b65377000) => /usr/lib64/ (0x00007f2b65170000) => /usr/lib64/ (0x00007f2b64ef6000) => /lib64/ (0x00007f2b64bf3000)
        /lib64/ (0x00005627f49a7000)


 readelf -d /usr/lib64/

Dynamic section at offset 0x6d40 contains 29 entries:
  Tag        Type                         Name/Value
 0x0000000000000001 (NEEDED)             Shared library: []
 0x0000000000000001 (NEEDED)             Shared library: []
 0x0000000000000001 (NEEDED)             Shared library: []
 0x0000000000000001 (NEEDED)             Shared library: []
 0x000000000000000e (SONAME)             Library soname: []
 0x000000000000000c (INIT)               0x25b0
 0x000000000000000d (FINI)               0x525c
 0x0000000000000019 (INIT_ARRAY)         0x206d08
 0x000000000000001b (INIT_ARRAYSZ)       40 (bytes)
 0x000000000000001a (FINI_ARRAY)         0x206d30
 0x000000000000001c (FINI_ARRAYSZ)       8 (bytes)
 0x0000000000000004 (HASH)               0x1c8
 0x000000006ffffef5 (GNU_HASH)           0x618
 0x0000000000000005 (STRTAB)             0x10b8
 0x0000000000000006 (SYMTAB)             0x7b8
 0x000000000000000a (STRSZ)              2847 (bytes)
 0x000000000000000b (SYMENT)             24 (bytes)
 0x0000000000000003 (PLTGOT)             0x206fe8
 0x0000000000000002 (PLTRELSZ)           1344 (bytes)
 0x0000000000000014 (PLTREL)             RELA
 0x0000000000000017 (JMPREL)             0x2070
 0x0000000000000007 (RELA)               0x1d58
 0x0000000000000008 (RELASZ)             792 (bytes)
 0x0000000000000009 (RELAENT)            24 (bytes)
 0x000000006ffffffe (VERNEED)            0x1c98
 0x000000006fffffff (VERNEEDNUM)         3
 0x000000006ffffff0 (VERSYM)             0x1bd8
 0x000000006ffffff9 (RELACOUNT)          13
 0x0000000000000000 (NULL)               0x0



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